elementscollectioncache.h

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/*
    Copyright 2006-2019 The QElectroTech Team
    This file is part of QElectroTech.
    
    QElectroTech is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 2 of the License, or
    (at your option) any later version.
    
    QElectroTech is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
    
    You should have received a copy of the GNU General Public License
    along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef ELEMENTS_COLLECTION_CACHE_H
#define ELEMENTS_COLLECTION_CACHE_H

#include <QSqlDatabase>
#include "elementslocation.h"

class ElementsCollectionCache : public QObject
{
    public:
    // constructor, destructor
    ElementsCollectionCache(const QString &database_path, QObject * = nullptr);
    ~ElementsCollectionCache() override;
    
    // methods
    public:
    void setLocale(const QString &);
    QString locale() const;
    bool setPixmapStorageFormat(const QString &);
    QString pixmapStorageFormat() const;
    bool fetchElement(ElementsLocation &location);
    QString name() const;
    QPixmap pixmap() const;
    bool fetchData(const ElementsLocation &);
    bool fetchNameFromCache(const QString &path, const QUuid &uuid);
    bool fetchPixmapFromCache(const QString &path, const QUuid &uuid);
    bool cacheName(const QString &path, const QUuid &uuid = QUuid::createUuid());
    bool cachePixmap(const QString &path, const QUuid &uuid = QUuid::createUuid());
    
    // attributes
    private:
    QSqlDatabase cache_db_;         
    QSqlQuery *select_name_;        
    QSqlQuery *select_pixmap_;      
    QSqlQuery *insert_name_;        
    QSqlQuery *insert_pixmap_;      
    QString locale_;                
    QString pixmap_storage_format_; 
    QString current_name_;          
    QPixmap current_pixmap_;        
};
#endif